Entwine or interlace (tree branches) to form a hedge or provide cover for an outdoor walkway.
Late Middle English: from an Old French variant of plaissier (see plash).
“He created the pleach walkway to the house over many years.”
A conference or meeting to discuss a particular subject./ A collection of essays or papers on a particular subject by a number of contributors.
Late 16th century (denoting a drinking party): via Latin from Greek sumposion, from sumpotēs ‘fellow drinker’, from sun- ‘together’ + potēs ‘drinker’.